FreeCalypso > hg > fc-magnetite

annotate src/g23m-gprs/llc/llc_irxp.c @ 222:79cb194284ca

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doc/Freerunner-Howto: update for the TCS2/TCS3 hybrid development
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 16 Oct 2016 00:26:26 +0000
parents 219afcfc6250
children
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183
219afcfc6250 src/g23m-gprs: initial import from TCS3.2/LoCosto
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul :
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : This modul is part of the entity LLC and implements all
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18 | functions to handles the incoming primitives as described in
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19 | the SDL-documentation (IRX-statemachine)
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20 +-----------------------------------------------------------------------------
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21 */
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22
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23 #ifndef LLC_IRXP_C
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24 #define LLC_IRXP_C
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25 #endif
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26
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27 #define ENTITY_LLC
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28
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29 /*==== INCLUDES =============================================================*/
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30
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31 #include "typedefs.h" /* to get Condat data types */
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32 #include "vsi.h" /* to get a lot of macros */
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33 #include "macdef.h"
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34 #include "gprs.h"
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35 #include "gsm.h" /* to get a lot of macros */
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36 #include "cnf_llc.h" /* to get cnf-definitions */
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37 #include "mon_llc.h" /* to get mon-definitions */
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38 #include "prim.h" /* to get the definitions of used SAP and directions */
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39 #include "llc.h" /* to get the global entity definitions */
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40
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41 #include "llc_irxf.h" /* to get IRX helper functions */
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42
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43
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44 /*==== CONST ================================================================*/
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45
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46 /*==== LOCAL VARS ===========================================================*/
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47
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48 /*==== PRIVATE FUNCTIONS ====================================================*/
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49
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50 /*==== PUBLIC FUNCTIONS =====================================================*/
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51
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52 /*
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53 +------------------------------------------------------------------------------
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54 | Function : irx_ll_getdata_req
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55 +------------------------------------------------------------------------------
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56 | Description : Handles the primitive LL_GETDATA_REQ
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57 |
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58 | Parameters : *ll_getdata_req - Ptr to primitive payload
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59 |
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60 +------------------------------------------------------------------------------
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61 */
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62 GLOBAL void irx_ll_getdata_req ( T_LL_GETDATA_REQ *ll_getdata_req )
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63 {
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64 BOOL frame_found;
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65 T_LL_UNITDATA_IND *ll_unitdata_ind;
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66
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67 TRACE_FUNCTION( "ll_getdata_req" );
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68
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69 SWITCH_LLC (ll_getdata_req->sapi);
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70
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71 TRACE_1_PARA("s:%d", ll_getdata_req->sapi);
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72
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73 switch (GET_STATE(IRX))
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74 {
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75 case IRX_TLLI_UNASSIGNED:
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76 /*
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77 * Ignore primitive.
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78 */
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79 PFREE (ll_getdata_req);
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80 /* SET_STATE (IRX, SAME_STATE); */
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81 break;
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82
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83 case IRX_TLLI_ASSIGNED:
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84 /*
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85 * Store L3 ready flag
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86 */
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87 llc_data->irx->ll_send_ready = TRUE;
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88 PFREE (ll_getdata_req);
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89 /* SET_STATE (IRX, SAME_STATE); */
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90 break;
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91
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92 case IRX_ABM:
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93 /*
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94 * Try to retrieve a frame from the queue and
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95 * forward it to L3, else store L3 ready flag.
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96 */
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97 irx_queue_retrieve (&ll_unitdata_ind, &frame_found);
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98 if (frame_found)
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99 {
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100 PPASS (ll_unitdata_ind, ll_data_ind, LL_DATA_IND);
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101 TRACE_2_OUT_PARA("s:%d len:%d", ll_data_ind->sapi, BYTELEN(ll_data_ind->sdu.l_buf));
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102 PSEND (hCommSNDCP, ll_data_ind);
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103
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104 llc_data->irx->ll_send_ready = FALSE;
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105
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106 /* SET_STATE (IRX, SAME_STATE); */
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107 }
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108 else
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109 {
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110 llc_data->irx->ll_send_ready = TRUE;
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111
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112 /* SET_STATE (IRX, SAME_STATE); */
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113 }
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114 PFREE (ll_getdata_req);
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115 break;
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116
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117 case IRX_ABM_BUSY:
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118 /*
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119 * Try to retrieve a frame from the queue and
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120 * forward it to L3, else store L3 ready flag.
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121 */
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122 irx_queue_retrieve (&ll_unitdata_ind, &frame_found);
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123 if (frame_found)
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124 {
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125 PPASS (ll_unitdata_ind, ll_data_ind, LL_DATA_IND);
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126 TRACE_2_OUT_PARA("s:%d len:%d", ll_data_ind->sapi, BYTELEN(ll_data_ind->sdu.l_buf));
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127 PSEND (hCommSNDCP, ll_data_ind);
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128
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129 llc_data->irx->ll_send_ready = FALSE;
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130
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131 /*
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132 * Indicate the clearance of the 'own received
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parents:
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133 * busy' condition to the peer entity
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134 */
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135 irx_send_ack (ABIT_SET_REQ);
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136
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137 SET_STATE (IRX, IRX_ABM);
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138 }
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parents:
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139 else
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parents:
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140 {
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parents:
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141 llc_data->irx->ll_send_ready = TRUE;
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parents:
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142
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143 /* SET_STATE (IRX, SAME_STATE); */
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144 }
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parents:
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145 PFREE (ll_getdata_req);
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parents:
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146 break;
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parents:
diff changeset
147
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parents:
diff changeset
148 default:
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parents:
diff changeset
149 PFREE (ll_getdata_req);
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parents:
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150 TRACE_ERROR( "LL_GETDATA_REQ unexpected" );
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parents:
diff changeset
151 break;
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parents:
diff changeset
152 }
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parents:
diff changeset
153
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parents:
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154 } /* irx_ll_getdata_req() */